Country With Highest Life Expectancy 2025. Life expectancy at birth compares the average number of years to be lived by a group of people born in the same year, if mortality at each age remains constant in the future. Life expectancy at birth is also a measure of overall quality of life in a country and summarizes the mortality at all ages.
The global average life expectancy in 2025 is 73.4 years. Other countries in this list include somalia, with an average life expectancy of 57.35 years and eswatini (swaziland) with a life expectancy of 57.71 years.